JavaScript字符串截断

Question

如下图的字符串，希望从第二个 : 截断；变成10.101.94.85:11160和10.101.93.86，请问应该何如实现？？？

10.101.94.85:11160:10.101.93.86

Answer 1

let matched = ('10.101.94.85:11160:10.101.93.86').match(/([\d.]+:\d+):([\d.]+)/)

matched[1]
matched[2]

Answer 2

var str = '10.101.94.85:11160:10.101.93.86'
var match = str.match(/((?:.+):.+):(.+)/)
console.log(match[1], match[2])

Answer 3

const ipStr = '10.101.94.85:11160:10.101.93.86';
const lastColon = ipStr.lastIndexOf(':');
const firstIP = ipStr.slice(0, lastColon);
const secondIP = ipStr.slice(lastColon + 1);
console.log(firstIP, secondIP);

Answer 4

思路是先split(':'), 把前两个元素slice，第三个元素至结束slice， 再join。如果不保证格式的话，另需有错误处理

Answer 5

var str = "10.101.94.85:11160:10.101.93.86";
var ret = /^([^\:]+\:[^\:]+)(?:\:([^\:]+))+/.exec(str);
console.log(ret.slice(1));

Answer 6

let str = '10.101.94.85:11160:10.101.93.86'
let arr = str.split(':')
let str1 = arr[0] + ':' + arr[1]
let str2 = arr[2]
console.log(str1, str2)